Improvement in revolving seats



G. F. DAWSON.

Revolving Seats.

Patented July 15, 1873.

Attorneys.

AM P/IUTO-LITHDHRAPHIC an N. flassomvsls mums) UNITED STATES PATENTOEEIG'E.

GEORGE F. DAWSON, OF WASHINGTON, DISTRICT OF COLUMBIA.

IMPROVEMENT IN REVOLVING SEATS.

Specification forming part of Letters Patent No. 140,895 dated July 15,1873; application filed 1 June 14, 1873.

To all whom it may concern.-

Be it known that I, GEORGE FRANCIS DAW- SON, of the city and county ofWashington, District of Columbia, have invented a new and Improved Modeof Bracing and Re-enforcing the Legs of Revolving Chairs, Book- Oases,or other articles; and I do hereby declare the following to be a full,clear, and exact description of the same, reference being had to theaccompanying drawing forming part of this specification, in which-Figures 1 and 2 are vertical sections of a revolving chair; and Fig. 3is a perspective view, partly in section.

The invention consists in a novel mode of bracing and re-enforcing thelegs of revolving chairs, book-cases, or other articles, as hereinafterfully described and generally indicated in the summary.

In Fig. l of the drawing, A represents an ordinary revolving belt, whichis threaded, and works in an internally-threaded tube, B. To this I adda top plate, b, with the downward flange b,that embraces the head 0 oflegs 0, and fits into a circumjacent recess, 0. On the outside of thelower end of nut B I make a thread, and screw thereon a nut, D, betweenwhich and the head O is interposed a plate, d. This plate d may besecured to the head '0 by screws e, or it may have an tended simply torevolve, there is no necessity I for a thread on the bolt A, orin thetube B.

By my construction, a very simple and cheap device is obtained, and onein which the legs may be easily taken apart when desired, for repair,replacement, or transportation, while the connection possessesremarkable strength,

and gives great durability.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The legs 0 having heads 6 G U 0 combined with the plates b b and d,the endthreaded tube B, and the nut D, as and for the purpose described.

2. The combination, with tube B, threaded externally at the lower end ofthe plate (1, with or without a flange, d or 01 and held by a nut, D, asand for the purpose set forth.

GEO. FRS. DAWSON.

Witnesses CHAS. A. PETTIT, SOLQN O. KEMoN.

